Evidence Model
ARQEN is evidence-first: every meaningful signal should explain its source basis or clearly state that source context is unavailable. Current public/demo surfaces use evidence references, not controlled file storage.
Evidence reference
Metadata that points to a certificate, inspection result, traveler, document, supplier record, or external context. Current references do not store controlled files.
Source basis
The record, lifecycle state, owner, due date, gate result, and rationale that explain why a quality signal matters.
Controlled evidence future
A future controlled file model would require storage provider selection, checksums, access control, retention, audit events, and export rules.
Review summary
A local/demo summary of available source context. It is useful for pilot review but is not a certified report or audit-grade package.